﻿ <!DOCTYPE html>
<html>
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>Hello Map</title> 
<script type="text/javascript"src="http://api.map.baidu.com/api?key=59db371659c04947a1ff044e80565718&v=1.4&services=true">
</script>  
<!--加载鼠标测距工具-->  
<script src="DistanceTool_min.js" type="text/javascript"></script>
<!--加载鼠标绘制工具-->  
<script type="text/javascript" src="DrawingManager_min.js"></script>  
<link rel="stylesheet" href="DrawingManager_min.css" />  

</head>
<body> 
<div id="mouselng" style="visibility:hidden"></div>
<div id="mouselat" style="visibility:hidden"></div> 
<div style="width:1000px;height:600px;border:1px solid gray" id="container">
</div>  
</body>
</html>
<script type="text/javascript">
    var map = new BMap.Map("container");
    map.centerAndZoom(new BMap.Point(108.876433, 36.269395), 5);
    map.addControl(new BMap.ScaleControl()); //添加比例尺控件(左下角显示的比例尺控件)
    map.addControl(new BMap.OverviewMapControl());// 缩略图控件
    var ctrl_nav = new BMap.NavigationControl({ anchor: BMAP_ANCHOR_TOP_LEFT, type: BMAP_NAVIGATION_CONTROL_LARGE }); 
    map.addControl(ctrl_nav);//添加标准地图控件(左上角的放大缩小左右拖拽控件)

    map.enableDragging(); //启用地图拖拽事件，默认启用(可不写)
    map.enableScrollWheelZoom(); //启用地图滚轮放大缩小
    map.enableDoubleClickZoom(); //启用鼠标双击放大，默认启用(可不写)
    map.enableKeyboard(); //启用键盘上下左右键移动地图 
    map.enableContinuousZoom();   // 开启连续缩放效果  
    map.enableInertialDragging(); // 开启惯性拖拽效果  
  

  //实时显示地图坐标 strat
    map.addEventListener("mousemove",GetlngAndlat);     
    function GetlngAndlat(e) {
    if(e.point.lng!=null)  
     {   
      document.getElementById("mouselng").innerHTML=e.point.lng;  
      document.getElementById("mouselat").innerHTML=e.point.lat;  
     }
}
   //实时显示地图坐标 end
   //测量距离 strat
    function openGetDistance() {  

     var myDis=new BMapLib.DistanceTool(map);//map为上面已经初始化好的地图实例  
     myDis.open();  
    }
    //测量距离 end

    //左右击鼠标给地图上放marker strat 放标注，并且将JS的数据传送给WINFORM 
    function PUTANDSEND() {  
       //右键标记
        map.addEventListener("rightclick", putAndsend);
        //左键标记
        //map.addEventListener("click", putAndsend);
  }
  var marker_num = 0;
    function putAndsend(e)  
    {  
      //放标注  
      var p1=new BMap.Point(e.point.lng,e.point.lat);  
        var myIcon = new BMap.Icon("png-0003.png", new BMap.Size(24, 24));
        var marker = new BMap.Marker(p1, { icon: myIcon });  // 创建标注
        map.addOverlay(marker);              // 将标注添加到地图中 

      marker_num++;//标注索引，这个是个全局变量  
      var whichCar=window.external.setWhichCar();  
      var label=new BMap.Label(whichCar+"号车-坐标"+marker_num+":"+  
    "("+e.point.lng+","+e.point.lat+")",{offset:new BMap.Size(20,-10)});  
      marker.setLabel(label);  
      //给WINFORM传值  
      window.external.PutIntotextBox(marker_num,whichCar,e.point.lng,e.point.lat);  
    
    } 
    //左右击鼠标给地图上放marker end

     //在地图上画轨迹 strat
    function DrawOrit1()  
    {  
     var Array=[];  
    var total_num= window.external.getRowsNumber();  
    for(var i=0;i<=2*total_num-1;i++)  
    {  
     Array.push(window.external.Getpoints(i));  
    }  
  
    var PointArr=[];  
    for(var i=0;i<=Array.length-1;i+=2)  
    {//偶数索引存经度，奇数存维度  
      PointArr.push(new BMap.Point(Array[i],Array[i+1]));  
    }  
    var polyline = new BMap.Polyline(PointArr, {strokeColor:"blue", strokeWeight:6,   strokeOpacity:0.5});  //定义折线  
      map.addOverlay(polyline);  
    window.external.ClearRows_num();//重置窗体计数器  
    }
    //在地图上画轨迹 end

    //在地图上画圆形或者方形 strat 
    // 编写自定义函数，创建标注   
    function addMarker(point) { 
        var myIcon = new BMap.Icon("png-0003.png", new BMap.Size(24, 24));
        var marker = new BMap.Marker(point, { icon: myIcon });  // 创建标注
        map.addOverlay(marker);              // 将标注添加到地图中  
    }

    var overlays = [];
    var complete=function(e)  
   {  
    overlays.push(e.overlay);  
    if (e.drawingMode == BMAP_DRAWING_CIRCLE)   
          {  
            //随便赋值，刷新一遍数据库(此方法只为演示，实际中要另考虑算法)  
          var test=  window.external.SearchAllCars(0);   
             
         var circle_radius=e.overlay.getRadius();//半径  
          //圆心  
         var circle_point=new BMap.Point(e.overlay.getCenter().lng,e.overlay.getCenter().lat);  
         //从WINFORM里取出数据  
         var dangerCars=[];  
         var pointlen=window.external.GetdangerNum();  
   
         for(var k=0;k<=pointlen-1;k++)  
          {  
             dangerCars.push(window.external.SearchAllCars(k));  
          }  
         var BMappoints=[];//创建百度地图接口规定的数组  
         for(var j=0;j<=dangerCars.length-1;j+=2)  
          {  
            BMappoints.push(new BMap.Point(dangerCars[j],dangerCars[j+1]));  
          }  
            
          for(var i=0;i<=BMappoints.length-1;i++)  
          {  
            if(map.getDistance(circle_point,BMappoints[i])<=circle_radius)  
            {
                //AddMarker(BMappoints[i]);//调用添加标注版本V3.0  
                var myIcon = new BMap.Icon("png-0003.png", new BMap.Size(24, 24));
                var marker1 = new BMap.Marker(BMappoints[i], { icon: myIcon });  // 创建标注
                map.addOverlay(marker1);              // 将标注添加到地图中  
            }      
          }  
            
        }  
            
      };  
//线条样式  
    var styleOptions = {  
        strokeColor:"blue",    //边线颜色。  
        fillColor:"blue",      //填充颜色。当参数为空时，圆形将没有填充效果。  
        strokeWeight: 3,       //边线的宽度，以像素为单位。  
        strokeOpacity: 1,    //边线透明度，取值范围0 - 1。  
        fillOpacity: 0.3,      //填充的透明度，取值范围0 - 1。  
        strokeStyle: 'solid' //边线的样式，solid或dashed。  
    }  
    //实例化鼠标绘制工具  
    var drawingManager = new BMapLib.DrawingManager(map, {  
        isOpen: true, //是否开启绘制模式  
        enableDrawingTool: true, //是否显示工具栏  
        drawingToolOptions: {  
            anchor: BMAP_ANCHOR_TOP_RIGHT, //位置  
            offset: new BMap.Size(5, 5), //偏离值  
            scale: 0.8, //工具栏缩放比例  
            drawingTypes : [           
            BMAP_DRAWING_CIRCLE,    
            BMAP_DRAWING_RECTANGLE   
         ]  
  
        },  
        circleOptions: styleOptions, //圆的样式   
        rectangleOptions: styleOptions //矩形的样式  
    });

    //添加鼠标绘制工具监听事件，用于获取绘制结果  
    drawingManager.addEventListener('overlaycomplete', complete);  
    //回调获得覆盖物信息，未使用该版本  
    var overlaycomplete = function (e) {
        overlays.push(e.overlay);
        var result = "";

        result += e.drawingMode + ":";

        if (e.drawingMode == BMAP_DRAWING_CIRCLE) {

            var circle_radius = e.overlay.getRadius();
            var circle_point = new BMap.Point(e.overlay.getCenter().lng, e.overlay.getCenter().lat);
            alert(map.getDistance(circle_point, tests[1]));
            for (var i = 0; i < 3; i++) {
                if (map.getDistance(circle_point, tests[i]) <= circle_radius) {
                    //AddMarker(tests[i]);
                    var myIcon = new BMap.Icon("png-0003.png", new BMap.Size(24, 24));
                    var marker1 = new BMap.Marker(tests[i], { icon: myIcon });  // 创建标注
                    map.addOverlay(marker1);              // 将标注添加到地图中  
                }
            }
            alert(result);
        }
        if (e.drawingMode == BMAP_DRAWING_POLYLINE || e.drawingMode == BMAP_DRAWING_POLYGON || e.drawingMode == BMAP_DRAWING_RECTANGLE) {
            result += ' 所画的点个数：' + e.overlay.getPath()[1].lng;
            alert(result);
        } 
    };  
      
 //drawingManager.enableCalculate();   
    //----------------------公用方法，用元素id获取元素的值-------------------  
    function $(id){  
        return document.getElementById(id);  
    }  
  
    //------------------画矩形，让WINFORM调用---------------  
    function drawRec(){  
drawingManager.setDrawingMode(BMAP_DRAWING_RECTANGLE);}  
    //------------------画圆，让WINFORM调用----------------  
     function drawCircle(){  
drawingManager.setDrawingMode(BMAP_DRAWING_CIRCLE);}  
    //------------------清除所有已画图形，让WINFORM调用--------------------  
    function clearAll() {  
        for(var i = 0; i < overlays.length; i++){  
            map.removeOverlay(overlays[i]);  
        }  
        overlays.length = 0
    }  
    //在地图上画圆形或者方形 end 

</script>

